/Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/MeshModelingToolsExp/Public/Sculpting/MeshSculptUtil.h
Recompute overlay normals for the overlay elements belonging to all the ModifiedTris. ElementSetBuffer and NormalsBuffer will be populated with all the normal overlay element IDs (you provide to allow for re-use of allocated memory)
namespace UE { namespace SculptUtil { void UE::SculptUtil::RecalculateNormals_Overlay ( [FDynamicMesh3](API\Runtime\GeometryCore\DynamicMesh\FDynamicMesh3) * Mesh, const [TSet](API\Runtime\Core\Containers\TSet)< int32 > & ModifiedTris, [TSet](API\Runtime\Core\Containers\TSet)< int32 > & ElementSetBuffer, [TArray](API\Runtime\Core\Containers\TArray)< int32 > & NormalsBuffer ) } }